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  • Your current location:Home >>Product Center >>3 a molecular sieve

    3 a molecular sieve

    Hits:925  Time:2020-01-15    


    3 a molecular sieve pore size for 3 a, mainly used for the adsorption of water, not any molecular adsorption diameter greater than 3 a, according to the application of industrial characteristics, we produce molecular sieve has faster adsorption speed, more number of regeneration, high crushing strength and ability to resist pollution, improve the utilization efficiency of the molecular sieve and prolong the service life of molecular sieve, dry gas liquid phase depth is petroleum, chemical industry, refining, necessary of desiccant polymerization.


    Low molecular sieve due to contain electricity price low ionic radius larger metal ions and combining state of the water, the water molecules in the heated continuously losing, but crystal skeleton structure remains the same, has formed many of the same size of the cavity, the cavity has many of the same diameter pores is linked together, these small cavity diameter size uniform, can channel diameter smaller than the molecular adsorption to the interior of the cavity, and channel than large molecules are excluded, so the molecules of different diameter size shape, the degree of different polarity molecules, the boiling point of different molecules, degree of saturation of different molecular separation, which have the function of the "screening" molecules, Hence the name molecular sieve. At present, molecular sieve is widely used in metallurgy, chemical industry, electronics, petrochemical industry, natural gas and other industries.


    aperture3 A
    diameter (mm)1.7-2.53.0-
    Grain size(%)≥98≥98≥96≥96


    density (g/ml)

    Wear rate (%)≤0.20≤0.20≤0.2≤0.2
    Static water (%)≥21≥21≥21≥21
    Static ethylene (‰)≤3.0≤3.0≤3.0≤3.0
    Packed water  (%)≤1.5≤1.5≤1.5≤1.5




    0.4K2O . 0.6Na2O . Al2O3 . 2SiO2 . 4.5 H2O
    SiO2 : Al2O3 ≈2



    (A)Drying of unsaturated hydrocarbons such as ethylene, 

    propylene, butadiene

    (B) Cracking gas drying

    (C)The drying of natural gas, if COS minimization is necessary, 

    or the low degree of co-adsorption is necessary for hydrocarbons.

    (D) Drying of highly polar compounds such as methanol and ethanol
    (E) Drying of liquid alcohol
    (F)Dehydration of static (non-regenerated) insulating glass devices, whether aerated or aerated.
    (G)Compressed natural gas is dry.



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